MEASUREMENT OF THE RATIO-BETA(D+-]PI(0)L+NU) BETA(D+-](K)OVER-BAR(0)L+NU)

被引：28

作者：

ALAM, MS

KIM, IJ

NEMATI, B

ONEILL, JJ

SEVERINI, H

SUN, CR

ZOELLER, MM

CRAWFORD, G

DAUBENMIER, CM

FULTON, R

FUJINO, D

GAN, KK

HONSCHEID, K

KAGAN, H

KASS, R

LEE, J

MALCHOW, R

MORROW, F

SKOVPEN, Y

SUNG, M

WHITE, C

WHITMORE, J

WILSON, P

BUTLER, F

FU, X

KALBFLEISCH, G

LAMBRECHT, M

ROSS, WR

SKUBIC, P

SNOW, J

WANG, PL

WOOD, M

BORTOLETTO, D

BROWN, DN

FAST, J

MCILWAIN, RL

MIAO, T

MILLER, DH

MODESITT, M

SCHAFFNER, SF

SHIBATA, EI

SHIPSEY, IPJ

WANG, PN

BATTLE, M

ERNST, J

KROHA, H

ROBERTS, S

SPARKS, K

THORNDIKE, EH

WANG, CH

机构：

[1] OHIO STATE UNIV,COLUMBUS,OH 43210

[2] UNIV OKLAHOMA,NORMAN,OK 73019

[3] PURDUE UNIV,W LAFAYETTE,IN 47907

[4] UNIV ROCHESTER,ROCHESTER,NY 14627

[5] SO METHODIST UNIV,DALLAS,TX 75275

[6] SYRACUSE UNIV,SYRACUSE,NY 13244

[7] VANDERBILT UNIV,NASHVILLE,TN 37235

[8] CALTECH,PASADENA,CA 91125

[9] UNIV CALIF SAN DIEGO,LA JOLLA,CA 92093

[10] UNIV CALIF SANTA BARBARA,SANTA BARBARA,CA 93106

[11] CARNEGIE MELLON UNIV,PITTSBURGH,PA 15213

[12] CORNELL UNIV,ITHACA,NY 14853

[13] UNIV FLORIDA,GAINESVILLE,FL 32611

[14] HARVARD UNIV,CAMBRIDGE,MA 02138

[15] UNIV ILLINOIS,URBANA,IL 61801

[16] ITHACA COLL,ITHACA,NY 14850

[17] UNIV KANSAS,LAWRENCE,KS 66045

[18] UNIV MINNESOTA,MINNEAPOLIS,MN 55455

[19] INST NUCL PHYS,NOVOSIBIRSK,RUSSIA

[20] CARLETON UNIV,OTTAWA K1S 5B6,ONTARIO,CANADA

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.71.1311

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using the CLEO-II detector, the branching ratio of the Cabibbo suppressed decay D+ --> pi0l+nu, relative to the branching ratio of the Cabibbo favored decay D+ --> K0l+nuBAR, is measured to be B(D+ --> pi0l+nu)/B(D+ --> K0l+nuBAR) = (8.5 +/- 2.7 +/- 1.4)%. From this ratio, the product of the ratio of Cabibbo-Kobayashi-Maskawa (CKM) matrix elements, \V(cd)/V(cs)\2, and the form factors at q2 = 0, \f+pi(0)/f+K(0)\2, is determined to be \V(cd)/V(cs)\2\f+pi(0)/f+K(0)\2 = 0.085 +/- 0.027 +/- 0.014.

引用

页码：1311 / 1315

页数：5

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